Bryan Grenfell is the Kathryn Briger and Sarah Fenton Professor of ecology and evolutionary biology at Princeton University. He also holds a position at the Princeton School of Public and International Affairs. He is an associated faculty member at Princeton’s High Meadows Environmental Institute (HMEI) and is affiliated both with HMEI’s Climate Change and Infectious Diseases Initiative and Grand Challenges Program. A British citizen, Grenfell received both the Order of the British Empire (OBE) and the Fellowship of the Royal Society (FRS). He is a population biologist who studies the dynamics of the spatial and temporal interaction of infectious diseases, particularly as they relate to the control of disease in human and animal populations.